Auxiliary refrigerator-door.



F. SOHMIDGALL & H. KORNMANN.

AUXILIARY REFRIGERATOR DOOR. APPLIGATION FILED AUG. 31, 1908.

1,012,103. Patented Dec. 19,1911.

W'Tnsssas- C4 lM 7 Z DQ J COLUMBIA FLANOGRAPH CO.,WASHINGTON, D. c.

UNITED STATES PATENT OFFICE.

FREDERICK SCHMIDGALL AND HENRY KORNMANN, OF CINCINNATI, OHIO, ASSIGNORS TO THE CINCINNATI BUTCHERS SUPPLY COMPANY, OF CINCINNATI, OHIO, A COR- PORATION OF OHIO.

To all whom 'it may concern:

Be it known that we, FREDERICK SCHMID- GALL and HENRY KORNMANN, both citizens of the United States, and residents of Cincinnati, Hamilton count-y, State of Ohio, have invented a certain new and useful Auxiliary Refrigerator-Door; and we do declare the following to be a clear, full, and exact description of the invention, attention being called to the accompanying drawing, with the reference characters marked thereon, which forms also a part of this specification.

In slaughter and packing-houses and similar establishments, carcasses or parts (so called quarters or sides) of them, are moved from one part of an establishment to another and also in and out of refrigerators, cooling-rooms, cold-storage compartments, while suspended on trolleys which travel on overhead-tracks. These tracks are accordingly arranged and distributed throughout a plant, taking in also these cooling-rooms and cold-storage compartments so that carcasses may be run into them and out again while suspended. Openings are provided in the inclosures' of these compartments for access and to permit the suspended carcasses to pass through in either direction, which openings are extended upwardly at a certain point to admit also the overhead track, the extended part being of a size sufiicient to clear the tnolleys traveling thereon. Doors are fitted to these openings, there being also a smaller or auxiliary door for the extended part of this opening. his desirable, forobvious reasons, that both doors move together for opening, or closing, so that, when the larger door is opened to permit passing of a carcass, the smaller door opens also, to clear the trolleywhich carries the carcass, and when the larger door is closed, the smaller or auxiliary door closes likewise.

For this reason doors connected so as to move in the manner indicated, and mechanism to operate them accordingly, have been provided and our invention concerns improvements in such mechanism whereby this auxiliary door is automatically operated whenever the larger door is manipulated.

In the following specification and particularly pointed out in the claims at the end thereof, will be found a full description of our invention, together with its operation, parts and construction, which latter Specification of Letters Patent.

Application filed August 31, 1908.

AUXILIARY REFRIGERATOR-DOOR.

Patented Dec. 19, 1911.

Serial No. 450,953.

is also illustrated in the accompanying drawing, in which Figure 1, shows in perspective view a portion of the outside of a wall which may form part of the inclosure of a refrigerator, cooling-room, or cold-storage compartment and is provided with an opening for access. Fig. 2, is an enlarged front-view of the auxiliary door showing it open. Fig. 3, shows the same closed. Figs. 1 and 5, are horizontal sections through the opening controlled by this door, this latter being shown in topview in both figures.

A may indicate part of one of the inclosing walls of a cold-storage, or cooling compartment. V

B is. an opening for access thereto, and through which the pieces of meat pass while suspended on a trolley C, which travels on an overhead track rail D. Opening B is extended as shown at to clear the rail D, and to permit also the trolleys which travel thereon to pass in and out-.

F is a door fitted to the large opening, conventional closing means G g, to be manipulated by hand, being provided to keep it shut. V

The door for the small opening E, consists of two wings or flaps H H, one on each side of track-rail D, at which they meet, the free edge of one or both being sufliciently cut out to clear the rail to permit these edges to come fully I together when the door is closing. Both wings are hingedly attached at opposite edges of opening E, and connected to each other in a manner that when one swings on its hinges, for opening or closing, the other is caused to follow. This connection of the wings to each other is suflici'ently above rail D to be out of the way of the trolleys which travel on this latter. It consists of an arm 8 rigidly attached to the inner side of one of the wings from which it projects, and of a link 9 which connects this arm to the other wing. The connection of the link at both of its ends is a jointed one, and where it connects to arm 8 it is also slidable, a slot 10 being provided in this arm.

The combined length of link andarmis such as to permit the wings to swing'apart sufliciently for the purpose, that is to permit a clear passage for the trolleys. See Figs. 1, 2 and 4. It is clear now, that if one of these wings is positively actuated by any means, the other wing shares in the effects of such actuation. e use door F as a means for this purpose and provide on the same, at or near its upper edge a projection 11, which is adapted to engage either one of two bars carried by the wings. When door F is being opened, this projection bears outwardly against a bar 12, and pulls the particular wing open. hen door F is being closed, the projection bears against a bar 13 and pushes the wing shut. By preference, both of these bars are combined in one structure, which may be a casting, and is provided with a flange 14 for its attachment to the particular wing.

Projection 11 may be in form of a pin which is set into a socket 15, the socket being bolted to door F, near the upper edge thereof. At the beginning of the openinginovement and as long as pin 11 maintains contact with bar 12, door and wing move together. After pin 11 moves out from behind this bar, the opening-movement of door F may continue independently, wing H remaining in the position in which it has been left, such position being also one sufficiently open to be out of the way of a passing trol ley. The other wing has of course followed the actuated wing by reason of their connection to each other. The bars are furthermore so shaped as to diverge outwardly and so arranged as to length, that in the closing-movement, of the large door F, pin 11 thereon, passes the end of bar 12 without contact, but strikes against bar 13, and in the proceeding closing movement continues to bear against this bar for the purpose of closing the wing. The other wing follows again. In addition to this function of bar 13, its length, shape, and position are such that its free end, when the closing-movement approaches its terminus, bears against the other wing and thereby aids the mechanism to force the wings into opening E. In further addition there is a closing plate 16, at the upper edge of door F, which with door F swings across both wings H H, and forces them closely home. Possibility of proper engagement of pin 11 with bar 13, for the purpose of closing the open wing presumes of course that this latter remains in the position in which it has been left by the pin 011 the opening-movement. To prevent its movement after that from any accidental cause whatsoever, and to hold the wing open and in this particular position, ready to be reengaged for the closing actuation, we provide a spring-stop 17, so shaped and attached that its free, rounded end, after encountered by bar 12, into the path of which it slightly projects, is caused to snap into the space between that bar and bar 13, after bar 12 has passed this end as shown in Figs. 2 and 4;. This spring is so located that this occurs at the moment when the wings have arrived in their open position, and when pin 11 ceases to act and passes away from the wing with which it was engaged. The spring readily yields when the wing is moved in the other direction for closing. It is also desirable to hold the other wing positively open, this latter being otherwise free to move to the extent of the length of slot 10, as best shown in Fig. 1. For such pur pose a pin 18 is provided on arm 8, and location and shape of the concerned parts are so arranged that said pin passes opposite the end of link 9, when the wings are open, as shown in Fig. 4, thereby preventing move ment of the link-connection in slot 10. hen the wings close, pin and link pass away from and clear each other. Conditions might arise where a single-winged auxiliary door might be sufficient for certain purposes.

Having described our invention, we claim as new:

1. In combination with the inclosure of a coolingroom having an access opening which is extended at a particular point, a door for this opening, an auxiliary door for its extension, which latter door consists of two, hingedly attached wings, means whereby these wings are connected to each other in a manner that when one is manipulated the other follows, and locking means to yieldingly hold one of the wings in open position.

2. In combination with the inclosure of a cooling-room having an access opening which is extended at a particular point, a door for this opening, an auxiliary door for its extension, which latter door consists of two, hingedly attached wings, means whereby these wings are connected to each other in a manner that when ("fine is manipulated the other follows, a device carried by the door first mentioned and adapted to actuate the wings accordingly, locking-means to hold one of the wings in open position and additional locking-means to lock one wing to the other.

3. In combination with the inclosure of a cooling-room having an access opening which is extended at a particular point, a door for this opening, an auxiliary door for its extension consisting of two wings which are operatively connected in a manner thatwhen one moves for opening or closing the other follows, two spaced bars carried by one of the wings, means provided on the door and adapted to interact with either one of these bars for the purpose of opening or closing the auxiliary door, and a spring-lock adapted to yieldingly occupy the space between the two bars mentioned when the wings are in open position to hold them so.

4. In combination with the inclosure of a cooling-room having an access opening which is extended at a particular point, a door for this opening, an auxiliary door for its extension consisting of two wingswhich are operatively connected in a manner that when one moves for opening or closing the other follows, a bar carried by one of the wings and adapted to extend over the other wing, to force the same to its seat at the end of the closing movement and means carried by the door first mentioned and adapted to actuate the wings. I

5. In combination with the inclosure of a cooling-room having an access opening which is extended at a particular point, a door for this opening, a hingedly attached auxiliary door for the extension of this opening, means whereby this auxiliary door is caused to open and close with the other door, and a closing-plate on this latter door adapted to lie across the auxiliary door when both doors move into their closing position.

6. In combination with the inclosure of a cooling-room having an access-opening which is extended at a particular point, a

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

door for this opening, an auxiliary door for its extension consisting of two wings, a slotted arm on one wing and a link pivoted to the other wing and slidingly engaged at its free end to the slotted arm and whereby the wings are operatively connected in a manner that when one moves for opening or closing, the other moves also, means carried by the door first mentioned and adapted to actuate the wings to open or close them and a pin on the slotted arm adapted to engage the free end of the link when the wings are open, thereby preventing the link from moving on the arm and holding the wings open.

In testimony whereof, we hereunto aflix our signatures in the presence of two witnesses.

FREDERICK SCHMIDGALL. HENRY KORNMANN.

Witnesses:

1 O. SPENGEL, T. LE BEAU.

Washington, D. C. 

